The US wanderer Jeanette Epps has been private from her arriving goal to a International Space Station (ISS) only months before launch.
Dr Epps was to have been a initial African-American wanderer reserved to a space hire crew.
She would have flown aboard a Russian Soyuz moody in Jun though is being transposed by another astronaut.
Nasa has not given a reason for withdrawing her though says she will be deliberate for destiny missions.
Jeanette Epps, innate in Syracuse, finished a doctorate in aerospace engineering in 2000. After graduating, she worked in a laboratory for dual years before being recruited by a Central Intelligence Agency (CIA).
She worked as a technical comprehension officer for 7 years before being comparison as a member of Nasa’s 2009 wanderer class. Her time with a CIA enclosed deployments to Iraq.
In an talk with Elle repository final year, Dr Epps said: “I get really vehement when we consider about being adult in space, partly since we review it to going into a fight zone.
“Both are really dangerous but, for me, it’s a no-brainer: we would rather face a dangers in space than go behind to a fight zone.”
She added: “When people come behind from space, we see how most they wish to go again.”
Dr Epps was due to launch to a orbiting outpost from Baikonur, Kazakhstan, along with a German European Space Agency (Esa) wanderer Alexander Gerst and a flight’s commander, Russian cosmonaut Sergei Prokopev.
Nasa offering no reason for a preference to mislay her from a Expedition 56/57 mission. In a statement, they pronounced she would “return to Nasa’s Johnson Space Center in Houston to assume duties in a Astronaut Office”.
Her replacement, Serena Auñón-Chancellor, is a medical alloy from Fort Collins, Colorado. Dr Auñón-Chancellor formerly spent some-more than 9 months in Russia ancillary medical operations for space hire organisation members.
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